kernel/linux.git/drivers/clk/mmp, branch v6.6.131

clk: mmp: pxa168: Fix memory leak in pxa168_clk_init()

2024-02-05T20:14:29+00:00

[ Upstream commit 2fbabea626b6467eb4e6c4cb7a16523da12e43b4 ] In cases where mapping of mpmu/apmu/apbc registers fails, the code path does not handle the failure gracefully, potentially leading to a memory leak. This fix ensures proper cleanup by freeing the allocated memory for 'pxa_unit' before returning. Signed-off-by: Kuan-Wei Chiu Link: https://lore.kernel.org/r/20231210175232.3414584-1-visitorckw@gmail.com Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: pxa910: Move number of clocks to driver source

2023-08-22T21:14:17+00:00

The number of clocks should not be in the dt binding as it is not used by the respective device tree and thus needlessly bloats the ABI. Move this number of clocks into the driver source. Signed-off-by: Duje Mihanović Link: https://lore.kernel.org/r/20230812-mmp-nr-clks-v2-4-f9271bd7eaa5@skole.hr Acked-by: Conor Dooley Signed-off-by: Stephen Boyd

clk: pxa1928: Move number of clocks to driver source

2023-08-22T21:14:14+00:00

The number of clocks should not be in the dt binding as it is not used by the respective device tree and thus needlessly bloats the ABI. Move this number of clocks into the driver source. Signed-off-by: Duje Mihanović Link: https://lore.kernel.org/r/20230812-mmp-nr-clks-v2-3-f9271bd7eaa5@skole.hr Acked-by: Conor Dooley Signed-off-by: Stephen Boyd

clk: pxa168: Move number of clocks to driver source

2023-08-22T21:14:06+00:00

The number of clocks should not be in the dt binding as it is not used by the respective device tree and thus needlessly bloats the ABI. Move this number of clocks into the driver source. Signed-off-by: Duje Mihanović Link: https://lore.kernel.org/r/20230812-mmp-nr-clks-v2-2-f9271bd7eaa5@skole.hr Acked-by: Conor Dooley Signed-off-by: Stephen Boyd

clk: mmp2: Move number of clocks to driver source

2023-08-22T21:13:45+00:00

The number of clocks should not be in the dt binding as it is not used by the respective device tree and thus needlessly bloats the ABI. Move this number of clocks into the driver source. Signed-off-by: Duje Mihanović Link: https://lore.kernel.org/r/20230812-mmp-nr-clks-v2-1-f9271bd7eaa5@skole.hr Acked-by: Conor Dooley Signed-off-by: Stephen Boyd

clk: mmp: Remove old non-OF clock drivers

2023-08-22T21:13:11+00:00

There are no MMP2, PXA168 or PXA910 boards still using board files which would use these drivers, so remove them. Signed-off-by: Duje Mihanović Link: https://lore.kernel.org/r/20230804-drop-old-mmp-clk-v1-1-0c07db6cee90@skole.hr Signed-off-by: Stephen Boyd

clk: mmp: Convert to platform remove callback returning void

2023-03-29T02:31:44+00:00

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230312161512.2715500-21-u.kleine-koenig@pengutronix.de Signed-off-by: Stephen Boyd

clk: mmp: pxa168: control shared SDH bits with separate clock

2022-09-30T20:34:07+00:00

The PXA168 has a peculiar setup with the AXI clock enable control for the SDHC controllers. The bits in the SDH0 register control the AXI clock enable for both SDH0 and SDH1. Likewise, the bits in the SDH2 register control both SDH2 and SDH3. This is modeled with two new parentless clocks that control the shared bits. Previously, SDH0 had to be enabled in order for SDH1 to be used, and when SDH1 was enabled, unused bits in the SDH1 register were being controlled. This fixes those issues. A future commit will add support for these new shared clocks to be enabled by the PXA168 SDHC driver. Signed-off-by: Doug Brown Link: https://lore.kernel.org/r/20220612192937.162952-13-doug@schmorgal.com Signed-off-by: Stephen Boyd

clk: mmp: pxa168: add clocks for SDH2 and SDH3

2022-09-30T20:34:07+00:00

The PXA168 has four SDHC peripherals. This commit adds the last two. Signed-off-by: Doug Brown Link: https://lore.kernel.org/r/20220612192937.162952-11-doug@schmorgal.com Signed-off-by: Stephen Boyd

clk: mmp: pxa168: fix GPIO clock enable bits

2022-09-30T20:34:06+00:00

According to the datasheet, only bit 0 of APBC_GPIO should be controlled for the clock enable. Bit 1 is marked as reserved (always write 0). Signed-off-by: Doug Brown Link: https://lore.kernel.org/r/20220612192937.162952-9-doug@schmorgal.com Signed-off-by: Stephen Boyd